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Isocyanide insertion reaction has drawn much attention from organic community.1 Since the discovery of copper-catalyzed insertion of isocyanide into a series of nucleophiles by Saegusa and Ito,many metals-catalyzed isocyanide insertions have been widely investigated.2 Up to now,the transition-metal-catalyzed and Lewis acid-catalyzed isocyanide insertion reactions have become powerful tool in organic synthesis.